| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Jay Finikin | Roncalli College | 11.60q |
| 2 | George Vae'au | Waitaki Boys' High School | 12.10q |
| 3 | Tom Hall | Timaru Boys' High School | 12.20q |
| 4 | Robert Harris | Geraldine High School | 12.60q |
| 5 | Logan Pinnell | Mountainview High School | 12.70 |
| -- | Mark Churchward | Geraldine High School | DNS |
| -- | Phil Dickens | Ashburton College | NT |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| 1 | Tomi Obafemi | Ashburton College | 12.10q |
| 2 | Tom Wardell | Geraldine High School | 12.40q |
| 3 | Tim Leonard | Roncalli College | 12.50q |
| 4 | Goodwin Williamson | Waitaki Boys' High School | 12.60q |
| 5 | Tony Wood | Waimate High School | 12.70 |
| -- | Fagin Butters | Mackenzie College | NT |
| -- | Oliver Luxton | Mt Hutt College | DNS |
| -- | Blair Mitchell | Timaru Boys' High School | NT |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Jay Finikin | Roncalli College | 11.70 |
| 2 | Tomi Obafemi | Ashburton College | 11.90 |
| 3 | George Vae'au | Waitaki Boys' High School | 12.00 |
| 4 | Tom Hall | Timaru Boys' High School | 12.10 |
| 5 | Goodwin Williamson | Waitaki Boys' High School | 12.20 |
| -- | Robert Harris | Geraldine High School | NT |
| -- | Tim Leonard | Roncalli College | NT |
| -- | Tom Wardell | Geraldine High School | NT |